Wisteria Longissima Alba 3 Litre Pot

Wisteria floribunda ‘Longissima Alba’
The Queen of White Wisterias – Elegance in Every Cascade

Wisteria floribunda ‘Longissima Alba’, also known as the White Japanese Wisteria, is a truly stunning deciduous climber admired for its exceptionally long, pure white flower racemes and graceful, architectural presence. One of the most spectacular of all wisterias, ‘Longissima Alba’ is famed for its breathtaking floral displays, making it a standout specimen for pergolas, arches, and large wall spaces.

Key Features

Extra-Long Flower Racemes
This variety is renowned for its show-stopping, pendulous flower clusters that can reach lengths of up to 60cm (2 feet) or more. The blooms are a pristine white and hang in elegant drapes from the branches, creating a curtain of flowers in late spring to early summer.

Delicate Fragrance
The flowers carry a soft, sweet scent that adds another layer of charm to garden spaces — ideal for seating areas where the fragrance can be appreciated up close.

Vigorous and Architectural Growth
‘Longissima Alba’ is a strong grower with a twining habit (clockwise) and can easily reach 8–10 metres (26–33 feet) when mature. It creates dramatic vertical interest and is ideal for covering sturdy structures with flair.

Seasonal Beauty
In addition to its floral display, this wisteria offers lush, pinnate green foliage throughout the growing season, turning buttery yellow in autumn before falling.

Growing Information

• Position: Best grown in full sun for maximum flowering performance.

• Soil: Moist but well-drained, fertile soil. Tolerates a range of soil types but prefers neutral to slightly acidic conditions.

• Height & Spread: Can reach up to 10m high and 4–6m wide with support.

• Hardiness: Fully hardy in the UK.

Care & Maintenance

• Pruning: Prune twice annually – in summer (July/August) to shorten long, whippy growth, and again in winter (January/February) to encourage flower bud formation by cutting back to 2–3 buds.

• Support: Needs strong, permanent support – such as wires, a pergola, or a sturdy fence – to train and display the long racemes to full effect.

• Feeding: Apply a high-potash fertiliser in early spring to encourage flower development.

• Watering: Water regularly in the first year and during prolonged dry spells, especially when flower buds are forming.

Why Choose Wisteria ‘Longissima Alba’?

For those who love timeless elegance and dramatic garden features, Wisteria floribunda ‘Longissima Alba’ is a dream choice. Its extraordinarily long white flower clusters and refined growth habit bring a sense of romance and grace to any outdoor space. Whether trained over an archway, cascading from a pergola, or climbing up a house wall, this wisteria adds instant prestige and beauty to the garden.

Perfect for classic English gardens, white-themed borders, or architectural planting schemes — ‘Longissima Alba’ is a true showstopper that delivers year after year.